1Made of polyurethane fiber, highly elastic and breathable 3D air cushion, shallow slot ventilation system, accelerate the diffusion of hot air, keep it cool and suitable for a long time. 2Wearresistant Oxford camouflage on the back, thick fabric, more tearresistant, waterrepellent, scratchresistant, abrasionresistant and strong, suitable for use in various scenes. 3Covering a large area with nonslip particles can effectively prevent the position of the air cushion from moving and slipping off. 4Decompression and comfort, the thickened multiair convection cushion design produces an even pressure and antigravity effect to relax the shoulders and prevent shoulder and neck pain. 5The surface of the cushion is added with farinfrared glue particles, covered with farinfrared ceramic powder, which effectively activates and promotes blood circulation. 69 mini air cushion is a unit, the internal gas circulates each other, air quickly disperses when being squeezed, result uniformly compressed antigravity effect, decompression feeling up to more than 30%. 7When the shoulder strap is heavily squeezed, the air in the cushion fluctuates up and down like a professional masseur soothing the shoulders. 8Can withstand high temperatures of 70 degrees and low temperatures of minus 30 degrees, fit for hiking, daily training, outdoor photography, work travel, etc., fit for 90% of the backpack's straps. Item Type:Shoulder Strap Pad Material: PolyurethaneFiber+TPU+Oxford Cloth Color: Camouflage Size: Approx.33.5x8.5cm/13.2x3.3in Weight: Approx. 150.0g/5.3oz Scope of Application: Backpacks Straps less than 7.6cm/3.0in in width 2 xShoulder Strap Pad